commit d31a849ff5011dad5c271b53819a0b279e367d68 Author: Greg Kroah-Hartman Date: Mon May 11 08:20:52 2026 +0200 Linux 6.18.29 Signed-off-by: Greg Kroah-Hartman commit 3eae0f4f9f7206a4801efa5e0235c25bbd5a412c Author: Hyunwoo Kim Date: Fri May 8 17:53:09 2026 +0900 rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present commit aa54b1d27fe0c2b78e664a34fd0fdf7cd1960d71 upstream. The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to a linear one before calling into the security ops only when skb_cloned() is true. An skb that is not cloned but still carries externally-owned paged fragments (e.g. SKBFL_SHARED_FRAG set by splice() into a UDP socket via __ip_append_data, or a chained skb_has_frag_list()) falls through to the in-place decryption path, which binds the frag pages directly into the AEAD/skcipher SGL via skb_to_sgvec(). Extend the gate to also unshare when skb_has_frag_list() or skb_has_shared_frag() is true. This catches the splice-loopback vector and other externally-shared frag sources while preserving the zero-copy fast path for skbs whose frags are kernel-private (e.g. NIC page_pool RX, GRO). The OOM/trace handling already in place is reused. Fixes: d0d5c0cd1e71 ("rxrpc: Use skb_unshare() rather than skb_cow_data()") Cc: stable@vger.kernel.org Signed-off-by: Hyunwoo Kim Reviewed-by: Jiayuan Chen Acked-by: David Howells Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman